OneTinSloth, have you looked at the two recently. This has been argued 1,000 times in past threads. Some people say this, some people say that. You guys can ride what ever you want. But I prefer to ride what was intended for the actual cranks. Not only because I believe that the taper is different, but also because of chainline. While I may be wrong, I am wrong with hundreds of other people. But look at them, they are definately different. I do believe the Sugino spindle is a tad stiffer, like uh, yes.